Hydrofluorocarbons (HFCs), potent greenhouse gases commonly used as refrigerants, are a small but rapidly growing component of U.S. greenhouse gas emissions. Fortunately, climate-friendly substitutes exist, and some of these alternatives can even create net savings for consumers.

The USDA's new Regional Conservation Partnerships Program aims to improve water quality by reducing agricultural runoff in targeted watersheds. The challenge is, how do we help make sure this new approach is successful?

Switzerland announced its post-2020 climate action plan yesterday, making it the first country to officially submit its contribution to the international climate agreement to be finalized in Paris at the end of this year. It's a promising start, with the country committing to reduce its emissions 50 percent below 1990 levels by 2030.

The Indian state of Tamil Nadu has a renewable energy potential close to 680 gigawatts (GW), 85 times its current installed capacity. Harnessing these resources could yield important economic development benefits for the state; but government, industry and the utility will first need to work together to address some key challenges.

The Lower Mekong River Basin (LMB) spans Laos, Cambodia, Thailand and Vietnam, and supports 60 million people. New research shows that climate change could damage $18 billion worth of infrastructure and decrease economic productivity in the region by $16 billion annually by 2050.